var body = $response.body;
var obj = JSON.parse(body);

obj = {
    "status": 200,
    "message": "success",
    "data": {
        "content": [
            {
                "id": "25",
                "num": "3"
            },
            {
                "id": "26",
                "num": "3"
            },
            {
                "id": "28",
                "num": "3"
            }
        ]
    }
}
  

body = JSON.stringify(obj);
$done({body});